Land-pulverizer.



G. E. KARL. LAND PULYERPZER. APPLICATION FILED MAR. 11. 1915.

1,167,079. I Patented Jan. 4, 1916.

nnrrsn s'rarns PATENT carton GEORGE E. KARL, F BEREA, OHIO, laSSIGrNORTO THE DUNHAM COMPANY, OF BEREA, OHIO, A CORPORATION OF OHIO.

LAND EULVERIZER.

To all whom it may concern Berea, county of Cuyahoga, and

' provement in .to distinguish inafter fully described and E. KARL, aresident of State of Ohio, have invented a new and useful Im-Land-Pulverizers, of which the following is a specification,theprinciple of the invention being herein explained, and the best modein which I have contemplated applying that principle, so as it fromother inventions. My invention relates to soil pulverizers andparticularly to verizers which relates to the connection between theframe of the pulverizer and the seat-support.

The object such a connection which will be economical of manufacture andefficient in its operation. The'said invention consists of meanshereparticularly. set

Be it known that I, GEORGE citizen of the United States,

forth in .the claims.

The annexed drawing and the following description set forth in detailcertain means embodying my invention, the disclosed means, however,constituting but one of various mechanical forms in which the principleof the invention may be applied.

In said annexed drawing :-Figure 1 rep- 7 resents a fragmentary plan ofa land-pulverizer to which my inyention has been applied. Fig. 2represents a fragmentary front elevation taken upon by line III-III inresents a side the plane indicated by line,II-II in Fig. 1. Fig. 3represents aside-elevation of the parts shown in Fig. 2 and taken uponthe plane indicated said figure. Fig. l repelevation of a completepulverizer embodying my invention, the tongue, however, being shownbroken away.

The general type of pulverizer which is illustrated by the drawing andto which I have shown my invention to be applied, is that shown,described and claimed in Patent No. 1,023,139, issued April 16, 1912 Thegeneral structure therefore need not be specifically described, and thefollowing description will be directed solely to that part of the devicewhich embodies my invention. It will be noted that in the above-namedpatentedstructure, the spring seat-support has its lower end rigidlysecured to the cross-bar 24: and that this cross-bar 1s rig-Specification of Letters Patent.

.ical journal to that part of said pul I ,only the end of the journal,of the; infvention is to provide' tral portion of the upper Patented an.4, 1916.

Serial No. 15,020.v

proved device, however, I provide the upper portion of each side-framewith a journal bearlng 39, preferably conical in form. In

each of these hearings is mounted a conwhich forms an integral part of aconnecting member ll. This connecting member is formed with acentralconical bore 42 through which passes a bolt 43 whose outer threaded endis provided with two nuts 4A which in conjunction with awasher 45 holdthe parts in place. The said journal is made slightly longer than thebearing so that the washer -15 when held tightly in place by thenuts,will not engage the opposing-face of'the side-frame 23,-but

thereby preventing binding, as will be readily understood.

The upper portion of each connecting member 41 is formed with an anglebar seat.

46 and in these seats are respectively secured, by' means of the bolts25, the ends of the cross-bar 24 of the frame. To the cenleg of theangle bar 23 is rigidly secured, by means of the bolt 47, the lower endof the flexible and rearwardly-curved spring seat-support 38. Having itsrear end suitably secured to the upper portion of the spring seatsupport is a chain 48 whose forward end is suitably secured to the frameof the machine. In the drawing I have shown this forward end secured tothe tongue, which for the purposes of this application may be considereda part of the frame.

From the above-described construction it will be seen that while thelower end of the spring seat-support is rigidly connected with thecross-bar 23, said lower end nevertheless, has an independent axis ofoscillation onthe frame of the machine, such axis being the axis ofoscillation of the journals 39 of the connecting members 41. It willalso be seen that the rearward movement of the spring seat-support islimited absolutely by the chain 48 which though collapsi'ble andoffering no resistance to the forward movement of said support isinextensible when it is taut, and hence provides the limitation referredto. The oscillation, however, of the connecting members 41 is stillfurther limited, and such limitation is provided, as shown in Figs. 2and 3, by a:

flanged portion 49'which extends inwardly from each side frame 23, itsupper end lying in the path of oscillatory movement of a projectingportion 50, formedon the said member 41. These means limit the oneoscillatory stroke, the other oscillatory stroke being limited by adownwardprojection 51 Whosepath of oscillatory movement is interceptedby the inner surface 52 -of-said flange portion. The length of the chain48, however, is such that during. the normal operation of thepulverizer, it will constitute the means for limiting the rear wardmovement of the spring seat-support so that ordinarily the upper end ofthe'sai flanged portion will not be used for such also an'independentaxis of oscillation; and

a collapsible member inextensible when taut, having its endsrespectively secured to said frame and seat-support.

3. In a land-pulverizer, the combination of frame including side-framemembers and across-bar connecting same; said crossbar beingoscillatorily mounted on said sideframe members; a spring seat-supporthavingits,- lower end rigidly secured to said crossbar; and a memberhaving its ends respectively secured to said frame and seatsupport.

it. In a land-pulverizer, the combination of a frame includingside-frame members and a cross-bar connecting same; said crossbar andside-frame members respectively being provided with cooperating journalsand bearings; a spring seat-support having its lower ends rigidlysecured to said crossbar; and'a member having its ends respectivelysecured to said frame and seat-support.

5. In a land-pulverizer, the combination of a frame includingside-frame. members each provided with an upwardly projecting portionformed with a bearing; a cross-bar having each end provided with ajournal mounted. in one of said bearings, said bearings-being arrangedso that said journals will have a limited oscillation therefor; a springseat-support having its lower end rigidly secured to said cross-bar; anda chain connecting said seat-support and said frame.

6. In a land-pulverizer, the combination of a frame including twoside-frame members each provided with a bearing; two

members each formed with ajournal respectively mounted and secured insaid bearings; a cross-bar rigidly secured to said journal members; aspring seat-support having its lower end rigidly secured to saidcrossbar; and a chain having its ends respectively secured to said frameand said seat-support.

Signed by me, this 19th day of January, 1915.

GEORGE E. KARL.

Attested by W. J. DUNHAM J. FURRY.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents,

' Washington, D. C.

